Page:Gods Glory in the Heavens.djvu/370

334 {|
 * +THE SUN
 * Volume (Earth's = 1),
 * 1,415,225
 * Mass (Earth's = 1),
 * 354,936
 * Density (Earth's = 1),
 * 0.2543
 * Diameter (Earth's = 1),
 * 111.454
 * in miles,
 * 882,646
 * apparent, mean,
 * 32′ 12″.6
 * Gravity at equator (Earth's = 1),
 * 28
 * In one second of time bodies fall, in feet,
 * 335
 * Period of rotation in days,
 * 25.5
 * Zone of maximum spots north from the equator,
 * 11°—15°
 * Usual limit of spots from the equator,
 * 33°
 * Period of maximum number of spots, in years,
 * 10
 * Diameter of maximum spot (Sun's = 1),
 * 0.05
 * Breadth of zone of drift, at equator, direction of rotation,
 * 30°
 * in each hemisphere, opposite direction,
 * 30°
 * Light of the Sun (light of star of 1st Mag. = 1),
 * 108,000,000,000
 * Intensity of Sun's light (electric light = 1),
 * 4
 * : (wax candle = 1),
 * 15,000
 * Heat of each square foot of surface, mechanical effect, in horse-power,
 * 7,000
 * Heat of each square foot of surface, equal the combustion of cwts. of coals per hour,
 * 13.5
 * Heat of each square foot of surface, equal 5 lbs. matter falling with velocity per second, in miles,
 * 390
 * Heat at centre of disc (heat at border = 1),
 * 2
 * Diameter of largest spots, in miles,
 * 50,000
 * Number of strata in atmosphere,
 * 4
 * Spots seen to rotate on their axis (in days), about
 * 18
 * Heat equivalent to loss of mechanical force by Mercury falling into Sun (a year's heat of Sun = 1),
 * 3
 * Velocity of bodies near the Sun (miles per second), about
 * 400
 * Point in Hercules to which the Sun is advancing, declination 35° N., right ascension,
 * 250°
 * }
 * Heat of each square foot of surface, equal the combustion of cwts. of coals per hour,
 * 13.5
 * Heat of each square foot of surface, equal 5 lbs. matter falling with velocity per second, in miles,
 * 390
 * Heat at centre of disc (heat at border = 1),
 * 2
 * Diameter of largest spots, in miles,
 * 50,000
 * Number of strata in atmosphere,
 * 4
 * Spots seen to rotate on their axis (in days), about
 * 18
 * Heat equivalent to loss of mechanical force by Mercury falling into Sun (a year's heat of Sun = 1),
 * 3
 * Velocity of bodies near the Sun (miles per second), about
 * 400
 * Point in Hercules to which the Sun is advancing, declination 35° N., right ascension,
 * 250°
 * }
 * Heat equivalent to loss of mechanical force by Mercury falling into Sun (a year's heat of Sun = 1),
 * 3
 * Velocity of bodies near the Sun (miles per second), about
 * 400
 * Point in Hercules to which the Sun is advancing, declination 35° N., right ascension,
 * 250°
 * }
 * 250°
 * }